Cisco Hosted Collaboration Solution contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are not available.
A vulnerability in Java code on the Cisco Hosted Collaboration Solution (HCS) could allow an unauthenticated, remote attacker to close TCP ports used by the system.
The vulnerability is due to improper packet processing in the Java code. An exploit could allow the attacker to create a denial of service (DoS) condition for that service.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
At the time this alert was first published, Cisco HCS 9.0(1) was vulnerable. Later releases of Cisco HCS may also be vulnerable.
To exploit this vulnerability, an attacker may need access to trusted, internal networks in which to targeted device may reside to send crafted packets to the device. This access requirement reduces the likelihood of a successful exploit.
Cisco has released a security notice at the following link: CVE-2014-2121
An unauthenticated, remote attacker could exploit this vulnerability to cause a DoS condition on an affected device.
The vulnerability is due to improper packet processing in the Java code of an affected device.
An unauthenticated, remote attacker could exploit this vulnerability by sending crafted packets to a targeted device. When processed, the packets could allow the attacker to create a DoS condition on the device.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators are advised to monitor affected systems.
The security vulnerability applies to the following combinations of products.
Cisco Hosted Collaboration Solution
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.